Michael Bisping
via UFC / Reebok

Following back-to-back losses, former UFC middleweight champion Michael Bisping has announced his retirement after nearly 15 years in MMA.

The 39-year-old revealed the news during his “Believe You Me” podcast, saying eye issues attributed to his decision. Back in 2003, he suffered a detached retina.

“You can’t do it forever, done it for a long time,” Bisping said. “Of course, I’ve got issues with my eye. After the [Kelvin] Gastelum fight, then I started having issues with my good eye.”

“It ain’t worth it,” he continued. “What else am I going to do? I won the belt. I’ve had tons of wins. I’ve done everything I set out to achieve.”

Before deciding to retire, Bisping said he had considered one last fight with Rashad Evans in London, but it didn’t happen. “Probably a good thing,” he said.

The former champ lost via a knockout to Kelvin Gastelum last November. Earlier that month, he lost the middleweight title to Georges St-Pierre via submission at UFC 217.

Bisping made his UFC debut in 2006, as the winner of The Ultimate Fighter 3. He went on to become the first (and still only) British champion in UFC history when he defeated Luke Rockhold at UFC 199 in June 2016.

Over his career, Bisping compiled a 30-9 overall record and a 20-9 record in his 11 years with the UFC. His 29 fights are the most in UFC history, and his 20 wins tie him with St-Pierre and Donald Cerrone for the most in the promotion’s history.